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Hard blip of the throttle, engine dies....

PostPosted: Fri Jul 03, 2015 9:20 pm
by smog7
My st185's engine is cutting off when I clutch in after an aggressive throttle blip.

Rpms drop and engine dies.

How should I go about trouble shooting?

Re: Hard blip of the throttle, engine dies....

PostPosted: Sun Jul 05, 2015 11:19 pm
by smog7
And this is why I am no longer active on this forum.....

Re: Hard blip of the throttle, engine dies....

PostPosted: Mon Jul 06, 2015 3:58 am
by Ugotgerms
Mine used to do that, I cleaned my MAF, got new spark plugs and gapped them correctly, got a new rotor and cap and wires. I also replaced my o2 sensor. One or a combination fixed it. Does it happen when driving or in nuetral, because min was when driving

Re: Hard blip of the throttle, engine dies....

PostPosted: Mon Jul 06, 2015 5:11 am
by smog7
Happens in gear and in neutral. Plug wires, cap and rotor are fairly new. Iridium plugs have about 30k on them, guess I'll check them out as well as the afm.

Re: Hard blip of the throttle, engine dies....

PostPosted: Mon Jul 06, 2015 8:23 am
by MWP
TPS would be my first check.

Re: Hard blip of the throttle, engine dies....

PostPosted: Mon Jul 06, 2015 11:21 am
by Ugotgerms
Thats right, I also readjusted the tps at the same time

Re: Hard blip of the throttle, engine dies....

PostPosted: Mon Jul 06, 2015 5:52 pm
by yyonline
There's a vacuum operated dash pot on the throttle body that's supposed to prevent the throttle plate from slamming shut. It will cushion it as it shuts. Might be worth looking into that as well as the vacuum line going to this in my car was in pretty sad shape.

Re: Hard blip of the throttle, engine dies....

PostPosted: Mon Jul 06, 2015 9:49 pm
by smog7
Thanks for the replies guys, going to check it our after my honeymoon to cancun :D :D